cochlea vs organ of Corti

cochlea and organ of Corti both are nouns.

Word	Noun	Adjective	Verb	Adverb
cochlea	Yes	No	No	No
organ of Corti	Yes	No	No	No

cochlea (noun)	organ of Corti (noun)
the snail-shaped tube (in the inner ear coiled around the modiolus) where sound vibrations are converted into nerve impulses by the organ of Corti	the hearing organ of the inner ear; contains receptors that respond to sound waves